首先确定自主神经环的位置、形状和外观。

What is a collarette? What is its function? Where is it located?

Collarette
Collarette自主神经环

Placement

a. Balanced

b. Constructed

c. Atonic

d. Irregular

Quality/Appearance

a. Normal 


b. Absent


c. Thin/Wispy

d. Thick/Ropey

Shape

Normal

Star shaped or jagged

Double

Intermittent

Square Raised, gateway arch or bridge/Angle of Funch’s